一锅溶热合成 Bi2S3-CdS 敏化 TiO2 NT 薄膜以提高光催化性能

IF 3.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Molecular Catalysis Pub Date : 2024-09-24 DOI:10.1016/j.mcat.2024.114560

Junwei Hou , Yingxiao Chen , Mihemanjang Yimiti , Yangfan Xue , Han Zhang , Qingyao Wang

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引用次数: 0

摘要

H2 能源作为绿色、环保的能源方式日益受到人们的关注，而光催化制取 H2 是利用取之不尽、用之不竭的太阳能进行转换的有效策略。本文通过一锅溶热合成法在 TiO2 纳米管阵列（TiO2 NTs）上装饰了 CdS-Bi2S3 纳米粒子。共敏化作用有效地扩展了光响应区域，减少了电子/空穴重组，增强了光催化H2进化性能。TiO2 NTs/Bi2S3CdS 获得了很高的光催化 H2 进化率（79.92 μmol-cm-2-h-1），而且该光催化剂还表现出显著的高稳定性。提出了光催化水分离的 H2 演化机理和电荷载流子传输。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

One-pot solvothermal synthesis of Bi2S3-CdS sensitized TiO2 NT films for improved photocatalytic performance

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One-pot solvothermal synthesis of Bi2S3-CdS sensitized TiO2 NT films for improved photocatalytic performance

H₂ energy causes the increasing attention as the green, environmental friendly energy style, and photocatalytic H₂ production is the effective strategy by the inexhaustible solar energy conversion. Herein, CdS-Bi₂S₃ nanoparticles were decorated on TiO₂ nanotube arrays (TiO₂ NTs) via one-pot solvothermal synthesis method. The cosensitization effectively extended the optical response region, reduced electron/hole recombination and strengthened the photocatalytic H₂ evolution performance. The high photocatalytic H₂ evolution rate (79.92 μmol·cm⁻²·h⁻¹) was obtained by TiO₂ NTs/Bi₂S₃CdS, and the photocatalyst also exhibited dramatically high stability. The photocatalytic water splitting for H₂ evolution mechanism and charge carrier transportation were proposed.

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来源期刊

Molecular Catalysis Chemical Engineering-Process Chemistry and Technology

CiteScore

6.90

自引率

10.90%

发文量

700

审稿时长

40 days

期刊介绍： Molecular Catalysis publishes full papers that are original, rigorous, and scholarly contributions examining the molecular and atomic aspects of catalytic activation and reaction mechanisms. The fields covered are: Heterogeneous catalysis including immobilized molecular catalysts Homogeneous catalysis including organocatalysis, organometallic catalysis and biocatalysis Photo- and electrochemistry Theoretical aspects of catalysis analyzed by computational methods